ActiveGroupChanging Event

Occurs before the ActiveGroup changes.

Syntax

Visual Basic

'Declaration
 
Public Event ActiveGroupChanging As ActiveGroupChangingEventHandler

C#

public event ActiveGroupChangingEventHandler ActiveGroupChanging

Event Data

The event handler receives an argument of type CancelableGroupEventArgs containing data related to this event. The following CancelableGroupEventArgs properties provide information specific to this event.

Property	Description
Cancel (Inherited from System.ComponentModel.CancelEventArgs)
Group	Read-only property that returns the UltraExplorerBarGroup associated with the CancelableGroupEventArgs.

Remarks

This event fires before the process of changing the active group has begun.

Example

The following code shows how to process the ActiveGroupChanging event.

For an overview of how to handle events in Visual Basic or Visual C#, see Event Handlers in Visual Basic and Visual C#. For specific information and code examples illustrating how to consume events in your application, see Consuming Events in the .NET Framework Developer's Guide.

Visual Basic

Imports System.Diagnostics
Imports Infragistics.Win
Imports Infragistics.Win.UltraWinExplorerBar


	Private Sub ultraExplorerBar1_ActiveGroupChanging(ByVal sender As Object, ByVal e As Infragistics.Win.UltraWinExplorerBar.CancelableGroupEventArgs) Handles ultraExplorerBar1.ActiveGroupChanging

		' Don't allow the ActiveGroup to change if the new group has a key of 'Primary'
		If (e.Group.Key = "Primary") Then
			e.Cancel = True
		End If

	End Sub

C#

using System.Diagnostics;
using Infragistics.Win;
using Infragistics.Win.UltraWinExplorerBar;


		private void ultraExplorerBar1_ActiveGroupChanging(object sender, Infragistics.Win.UltraWinExplorerBar.CancelableGroupEventArgs e)
		{
			// Don't allow the ActiveGroup to change if the new group has a key of 'Primary'
			if (e.Group.Key == "Primary")
				e.Cancel = true;
		}

Requirements

Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2